STUDIES ON EXOSMOSIS 
491 
the percentage of the total number of gram molecules present in the 
form of each of the constituent salts. The corresponding figures for 
sea water diluted to the same extent are given for comparison. 
The effect of this solution on exosmosis from the protoplasm (after 
the first thirty minutes) does not differ appreciably from that of 
o 
X 
s 
-3 
Howry 
Fig. 4. 
distilled water. The rate of exosmosis lies always intermediate 
between those for sodium and calcium chlorides, as will be seen from 
the data given in Table 4, and graphically presented in Figure 4. 
Results wholly analogous with those given above were secured 
after much shorter exposures to the salt solutions. Effects could be 
detected even after a four-minute exposure to a sodium chloride 
solution. 
